This author is in China (as of 2017).
This author works for Chinamobile (as of 2017).
The working group where Yichuan is active appear to be sipcore.
Yichuan has no RFCs.
Yichuan has the following 1 drafts:
Yichuan's next actions and the actions Yichuan waits from others can be seen from the dashboard page.
Data Freshness and Source
This is a part of a statistics report generated by authorstats
on 11/12, 2017.